"Jingle Bells is playing. It`s Christmas Eve. Inside my room appears Santa in a Miniskirt and her name is..."
Itsudatte My Santa is a little story about a boy named Santa who is alone on Christmas Eve who happens to meet a girl name Mai/Santa Claus. A cute Santa girl in a miniskirt who comes to him to give him a little luck. One night with her turns out to be the greatest gift anyone has ever given him.
This OVA is based on the one-shot manga which was written by Akamatsu Ken back in 1998.